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Installing older versions of IIS RRS feed

  • Question

  • Is it possible to install older versions of .NET/IIS on a machine?

    I have a situation where somebody wants to upgrade a Windows Server 2003 that has .NET 1.1 and 2.0 installed to Server 2012, but the applications on it are very much geared to those older versions. I need to know if we are going to have an application issue based on this upgrade.

    Basically, we are not in a position to upgrade the apps to a later version of .NET yet, so I need to know can I install an older version of .NET to account for this.

    Also, does it mean that we would need to install an older version of IIS as well? I'm assuming we would need to match the older version of .NET with an older version of IIS.

    Thanks!

    Thursday, December 5, 2013 1:13 PM

Answers

  • Hello ChrisMikeC,

    I can only answer your question about .NET Framework. Please check below article:

    http://msdn.microsoft.com/en-us/library/hh925570(v=vs.110).aspx

    It is not possible to manually install the .NET Framework 1.1 on Windows 8, Windows 8.1, Windows Server 2012, or Windows Server 2012 R2. It is no longer supported. If you try to install the package, the following error message is displayed: "Setup cannot continue because this version of the .NET Framework is incompatible with a previously installed one." To solve this problem, install the .NET Framework 3.5 SP1. This version includes the .NET Framework 2.0 (the release that follows the .NET Framework 1.1), which is supported on Windows 8 and Windows 8.1. You should always try to install the application first to determine if it will automatically be updated to a later version of the .NET Framework. If it does not, contact your ISV for an application update.

    Actually I'm not so sure if your application can work on .NET Framework 3.5 SP1. If it cannot, I don't recommend you upgrade to the new OS version. For IIS related question, I'm sorry that you have to ask here: http://forums.iis.net/

    Regards,



    Barry Wang
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    • Proposed as answer by pvdg42 Friday, December 6, 2013 7:28 PM
    • Marked as answer by Barry WangModerator Wednesday, December 18, 2013 2:27 AM
    Friday, December 6, 2013 8:47 AM
    Moderator